1 /* 2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #ifndef SHARE_PRIMS_FOREIGN_GLOBALS 25 #define SHARE_PRIMS_FOREIGN_GLOBALS 26 27 #include "code/vmreg.hpp" 28 #include "oops/oopsHierarchy.hpp" 29 #include "utilities/growableArray.hpp" 30 #include "utilities/macros.hpp" 31 32 #include CPU_HEADER(foreign_globals) 33 34 struct CallRegs { 35 VMReg* _arg_regs; 36 int _args_length; 37 38 VMReg* _ret_regs; 39 int _rets_length; 40 41 void calling_convention(BasicType* sig_bt, VMRegPair *parm_regs, uint argcnt) const; 42 }; 43 44 class ForeignGlobals { 45 private: 46 struct { 47 int inputStorage_offset; 48 int outputStorage_offset; 49 int volatileStorage_offset; 50 int stackAlignment_offset; 51 int shadowSpace_offset; 52 } ABI; 53 54 struct { 55 int index_offset; 56 int type_offset; 57 } VMS; 58 59 struct { 60 int size_offset; 61 int arguments_next_pc_offset; 62 int stack_args_bytes_offset; 63 int stack_args_offset; 64 int input_type_offsets_offset; 65 int output_type_offsets_offset; 66 } BL; 67 68 struct { 69 int arg_regs_offset; 70 int ret_regs_offset; 71 } CallConvOffsets; 72 73 ForeignGlobals(); 74 75 static const ForeignGlobals& instance(); 76 77 template<typename R> 78 static R cast(oop theOop); 79 80 template<typename T, typename Func> 81 void loadArray(objArrayOop jarray, int type_index, GrowableArray<T>& array, Func converter) const; 82 83 const ABIDescriptor parse_abi_descriptor_impl(jobject jabi) const; 84 const BufferLayout parse_buffer_layout_impl(jobject jlayout) const; 85 const CallRegs parse_call_regs_impl(jobject jconv) const; 86 public: 87 static const ABIDescriptor parse_abi_descriptor(jobject jabi); 88 static const BufferLayout parse_buffer_layout(jobject jlayout); 89 static const CallRegs parse_call_regs(jobject jconv); 90 }; 91 92 #endif // SHARE_PRIMS_FOREIGN_GLOBALS 93